1618980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{223}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 5005056

約数和(自身を除く): 3386076

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 223, 242, 330, 363, 446, 484, 605, 660, 669, 726, 892, 1115, 1210, 1338, 1452, 1815, 2230, 2420, 2453, 2676, 3345, 3630, 4460, 4906, 6690, 7260, 7359, 9812, 12265, 13380, 14718, 24530, 26983, 29436, 36795, 49060, 53966, 73590, 80949, 107932, 134915, 147180, 161898, 269830, 323796, 404745, 539660, 809490, 1618980]

約数ペア:

[(1, 1618980), (2, 809490), (3, 539660), (4, 404745), (5, 323796), (6, 269830), (10, 161898), (11, 147180), (12, 134915), (15, 107932), (20, 80949), (22, 73590), (30, 53966), (33, 49060), (44, 36795), (55, 29436), (60, 26983), (66, 24530), (110, 14718), (121, 13380), (132, 12265), (165, 9812), (220, 7359), (223, 7260), (242, 6690), (330, 4906), (363, 4460), (446, 3630), (484, 3345), (605, 2676), (660, 2453), (669, 2420), (726, 2230), (892, 1815), (1115, 1452), (1210, 1338)]